Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
2006-11-06
AIP Conf. Proc. 861, 756 (2006)
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
Talk given by T. P. S. at Albert Einstein's Century International Conference, Paris, France, 18-22 Jul 2005
Scientific paper
10.1063/1.2399654
A binary system, composed of a compact object orbiting around a massive central body, will emit gravitational waves which will depend on the central body's spacetime geometry. We expect that the gravitational wave observables will somehow ``encode'' the information about the spacetime structure. On the other hand, it has been known for some time that the geometry around an axisymmetric body can be described by its (Geroch-Hansen) multipole moments. Therefore one can speculate that using the multipole moments can prove to be a helpful tool for extracting this information. We will try to demonstrate this in this talk, following the procedure described by [F. D. Ryan, Phys. Rev. D {\bf 52} 5707 (1995)] and [T. P. Sotiriou and T. A. Apostolatos, Phys. Rev. D {\bf 71} 044005 (2005)].
Apostolatos Theocharis A.
Sotiriou Thomas P.
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